KR20160104361A - Apparatus for inspecting light transmission object - Google Patents

Apparatus for inspecting light transmission object Download PDF

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Publication number
KR20160104361A
KR20160104361A KR1020150027261A KR20150027261A KR20160104361A KR 20160104361 A KR20160104361 A KR 20160104361A KR 1020150027261 A KR1020150027261 A KR 1020150027261A KR 20150027261 A KR20150027261 A KR 20150027261A KR 20160104361 A KR20160104361 A KR 20160104361A
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KR
South Korea
Prior art keywords
light transmitting
air blowing
transmitting member
light transmission
present
Prior art date
Application number
KR1020150027261A
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Korean (ko)
Inventor
홍진광
Original Assignee
한화테크윈 주식회사
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Priority to KR1020150027261A priority Critical patent/KR20160104361A/en
Publication of KR20160104361A publication Critical patent/KR20160104361A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B5/00—Cleaning by methods involving the use of air flow or gas flow
    • B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
    • B08B5/023—Cleaning travelling work
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
    • G01N21/958—Inspecting transparent materials or objects, e.g. windscreens

Abstract

Provided is an apparatus for inspecting a light transmission unit capable of improving the quality of inspection of a light transmission unit. According to an aspect of the present invention, the apparatus of the present invention comprises: a first transfer device transferring a light transmission unit in one direction; a second transfer device arranged in a way that an inspection area can exist between the ends of the first transfer device, receiving the light transmission unit transferred by the first transfer device to continuously transfer the light transmission unit in one direction; a photographing device taking a picture of the light transmission unit placed in the inspection area; a lighting device irradiating the light transmission unit with illuminating light; a first air blow device placed in the upper portion of the first transfer device, pressurizing the upper surface of the light transmission unit transferred by the first transfer device with compressed air; and a second air blow device placed in the upper portion of the second transfer device, pressurizing the upper surface of the light transmission unit transferred by the second transfer device with compressed air.

Description

[0001] Apparatus for inspecting light transmission object [

The present invention relates to an apparatus for inspecting a light transmitting member.

BACKGROUND ART Light transmitting members such as glass and plastic are widely used for industrial use and household use. The light transmitting member is often seen in the vicinity due to its function and aesthetics. Light transmitting members are also used in home glass, automobile glass, and touch panels of portable electronic devices.

In the production process of the light transmitting member, an inspection step for detecting cracks, scratches, and the like of the light transmitting member is required. In the publication No. 2014-0040511, a glass substrate inspecting apparatus for detecting a defect by picking up a glass substrate is disclosed.

According to an aspect of the present invention, there is provided a device for inspecting a light transmitting member with improved inspection quality.

According to an aspect of the present invention, there is provided an image forming apparatus including: a first conveying device for conveying a light transmitting member in one direction; and an inspection area disposed between the end of the first conveying device, A second transfer device that receives the light transmitting member and continuously transfers the light transmitting member in the one direction, an imaging device that images the light transmitting member positioned in the inspection area, an illumination device that irradiates the light transmitting member with illumination light, A first air blowing device located above the first conveying device and pressurizing the upper surface of the light transmitting member conveyed by the first conveying device with compressed air; And a second air blowing device for pressurizing the upper surface of the light transmitting member conveyed by the second conveying device with compressed air.

At least one of the first conveying device and the second conveying device may include two ring belt conveyor devices arranged in parallel with each other.

At least one of the first air blowing device and the second air blowing device may include at least one air blowing unit and a height adjusting device for adjusting the height of the air blowing unit.

At least one of the first air blowing device and the second air blowing device may include at least one air blowing unit and a tilt adjusting device for adjusting the inclination of the air blowing unit.

At least one of the first air blowing apparatus and the second air blowing apparatus may include a plurality of air blowing units, and the plurality of air blowing units may be disposed in at least one row along the one direction.

At least one of the first air blowing device and the second air blowing device may include a plurality of air blowing units, and the plurality of air blowing units may be arranged in a jig along the one direction.

The light transmitting member inspecting apparatus according to one aspect of the present invention can prevent the light transmitting member from shaking when the light transmitting member is transported by the first air blowing device and the second air blowing device, So that the inspection quality of the light transmitting member can be improved.

FIG. 1 is a schematic plan view of a light transmitting member inspection apparatus according to an embodiment of the present invention, in which the imaging apparatus and the illumination apparatus are omitted for the sake of explanation, In which the transmission member is placed.
FIG. 2 is a schematic front view showing a front view of a light transmitting member inspection apparatus according to an embodiment of the present invention, in which the light transmitting member shown in FIG. 1 is further moved in one direction.
3 is a schematic view showing a part of a side surface of a light-transmitting member inspection apparatus according to an embodiment of the present invention.
4 is a schematic plan view showing a light transmitting member inspection apparatus according to a modification of the embodiment of the present invention.
5 is a schematic plan view showing a light transmitting member inspection apparatus according to another modification of the embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. In the present specification and drawings, the same reference numerals are used for constituent elements having substantially the same configuration, and redundant description is omitted. In the accompanying drawings, there may be exaggerated portions for the sake of explanation.

FIG. 1 is a schematic plan view of a light transmitting member inspection apparatus according to an embodiment of the present invention, in which the imaging apparatus and the illumination apparatus are omitted for the sake of explanation, In which the transmission member is placed. 2 is a schematic front view showing a front view of a light transmitting member inspection apparatus according to an embodiment of the present invention. FIG. 2 is a view showing a state in which the light transmitting member shown in FIG. 1 is further moved in one direction. 3 is a schematic view showing a part of a side surface of a light-transmitting member inspection apparatus according to an embodiment of the present invention.

1 to 3, a light transmitting member inspection apparatus 100 according to an embodiment of the present invention is an apparatus for inspecting a light transmission member B, and includes a first conveying device 110, A second air blowing device 160 and a controller 170. The first air blowing device 150 includes a first air blowing device 120, an image pickup device 130, a lighting device 140, a first air blowing device 150,

The light transmitting member (B) to be inspected is a member that transmits at least a part of light, and can be applied without restriction as long as it is a material through which light such as glass or synthetic resin is transmitted.

The first conveying device 110 is a device for conveying the light transmitting member B in one direction S and includes two ring belt conveying devices 111 arranged in parallel to each other, a driving motor 112, a speed reducer 113, an encoder 114, a first light transmission member detection sensor 115, and a second light transmission member detection sensor 116.

The ring belt conveyor apparatus 111 includes a belt pulley 111a and a ring belt 111b. The belt pulley 111a is a belt around which the ring belt 111b is wound. The belt pulley 111a includes a drive pulley 111a_1 and a driven pulley 111a_2).

The drive pulley 111a_1 is connected to the shaft of the speed reducer 113 and receives power to transmit power to the ring belt 111b. The driven pulley 111a_2 receives power from the ring belt 111b and rotates And maintains the tension by supporting the ring gear 111b.

The ring belt 111b receives power from the drive pulley 111a_1 and rotates so that the outer surface of the ring belt 111b contacts the light transmitting member B to convey the light transmitting member B.

The drive motor 112 is driven under the control of the controller 170, and generates and transmits power to the reducer 113. The drive motor 112 may be a general DC motor or an AC motor, and various motors such as a step motor and a servo motor may be used.

The decelerator 113 receives power from the drive motor 112 and transmits power to the drive pulley 111a_1.

According to the present embodiment, the first conveying apparatus 110 further includes the speed reducer 113 separately from the driving motor 112, but the present invention is not limited thereto. That is, when the drive motor 112 of the ring belt conveyor apparatus 111 according to the present invention is a low-speed motor, the speed reducer 113 may not be used, and the drive motor 112 may include a geared motor a geared motor may be used.

The encoder 114 is an apparatus for controlling the drive motor 112 by detecting the rotation speed of the drive motor 112 and sending it to the control unit 170.

The first transfer device 110 according to the present embodiment includes the encoder 114 for precise control, but the present invention is not limited thereto. That is, the first transfer device 110 according to the present invention may not include the encoder 114.

The first light transmission member detection sensor 115 and the second light transmission member detection sensor 116 are sensors for detecting the position of the light transmission member B placed on the first transfer device 110. That is, the first light transmission member detection sensor 115 and the second light transmission member detection sensor 116 detect the position of the light transmission member B placed on the surface of the ring gear 111b, And transmits the result. The first light transmission member detection sensor 115 and the second light transmission member detection sensor 116 may be various types of position detection sensors such as a general optical sensor, a laser sensor, a magnetic sensor, and an ultrasonic sensor.

The first conveying device 110 according to the present embodiment includes two ring belt conveyor devices 111 arranged in parallel to each other, but the present invention is not limited thereto. That is, the first conveying apparatus 110 according to the present invention can be configured to include a single flat belt conveyor apparatus. In this case, it is preferable that the width of the flat belt is formed to be equal to or larger than the width W of the light transmitting member B so that the light transmitting member B can be raised and sufficiently conveyed.

The second conveying device 120 is disposed at a predetermined distance from the first conveying device 110 in the one direction S. The second conveying device 120 is disposed at a predetermined distance from the first conveying device 110, And continues to feed in the one direction (S).

The second conveying device 120 includes two ring belt conveyor devices 121, a driving motor 122, a speed reducer 123, an encoder 124, a third light transmission member detection sensor 125, .

The ring belt conveyor apparatus 121 includes a belt pulley 121a and a ring belt 121b. The belt pulley 121a is a position where the ring belt 121b is wound, and the drive pulley 121a_1 and the follower pulley 121a_2.

The drive pulley 121a_1 is connected to the shaft of the speed reducer 123 and receives power to transmit power to the ring belt 121b. The driven pulley 121a_2 receives power from the ring belt 121b and rotates And is a member that supports the ring gear 121b to maintain the tension.

The ring belt 121b receives power from the drive pulley 121a_1 to rotate and the outer surface of the ring belt 121b contacts the light transmitting member B to convey the light transmitting member B.

The driving motor 122 is driven under the control of the controller 170 and generates power to be transmitted to the speed reducer 123. The drive motor 122 may be a general DC motor or an AC motor, and various motors such as a step motor and a servo motor may be used.

The speed reducer 123 receives power from the drive motor 122 and transmits power to the drive pulley 121a_1.

According to the present embodiment, the second conveyance device 120 further includes the speed reducer 123 separately from the drive motor 122, but the present invention is not limited thereto. That is, when the drive motor 122 of the ring belt conveyor apparatus 121 according to the present invention is a low-speed motor, the speed reducer 123 may not be used, and the drive motor 122 may include a geared motor May be used.

The encoder 124 is a device for controlling the drive motor 122 by detecting the rotation speed of the drive motor 122 and sending it to the control unit 170.

The second transfer device 120 according to the present embodiment includes the encoder 124 for precise control, but the present invention is not limited thereto. That is, the second transfer device 120 according to the present invention may not include the encoder 124.

The third light transmission member detection sensor 125 is a sensor for detecting the position of the light transmission member B placed on the second transfer device 120. That is, the third light transmission member detection sensor 125 detects the position of the light transmission member B placed on the surface of the ring belt 121b and transmits the detection result to the control unit 170. [ For this, various sensors such as a general optical sensor, a laser sensor, a magnetic sensor, and an ultrasonic sensor may be used as the third light transmission member detection sensor 125.

The second conveying device 120 according to the present embodiment includes two ring belt conveyor devices 121 arranged in parallel to each other, but the present invention is not limited thereto. That is, the second conveying device 120 according to the present invention can be configured to include a single flat belt conveyor device. In this case, it is preferable that the width of the flat belt is formed to be equal to or larger than the width W of the light transmitting member B so that the light transmitting member B can be raised and sufficiently conveyed.

On the other hand, the inspection area E exists between the end of the first conveying device 110 and the start of the second conveying device 120 in the direction of the one direction S. [ The image capturing apparatus 130 captures the light transmitting member B using the inspection region E. [

The imaging device 130 images the light transmission member B positioned in the inspection area E, and the imaging device 130 can be a line scan camera.

The imaging device 130 according to the present embodiment uses a line scan camera, but the present invention is not limited thereto. That is, various types of cameras such as an area scan camera as well as a line scan camera can be used as the imaging device according to the present invention.

The illuminating device 140 performs a function of illuminating the light transmitting member B with illumination light to help the imaging device 130 photograph.

The illuminating device 140 includes a first illuminating section 141 located above the light transmitting member B and a second illuminating section 142 located below the light transmitting member B.

The illuminating device 140 according to the present embodiment includes the first illuminating section 141 and the second illuminating section 142 to illuminate the illuminating light at the two positions above and below the light transmitting member B. However, But is not limited thereto. That is, the illumination apparatus according to the present invention may irradiate the illumination light to such an extent that the imaging apparatus 130 can smoothly photograph the light transmitting member B, and there is no particular limitation on the number and arrangement positions of the illumination units. For example, the illumination unit may be composed of one, three, or the like, and may be installed only above or below the light transmission member B when the illumination unit is composed of one.

The first air blowing device 150 is located above the first conveying device 110 and conveys the upper surface of the light transmitting member B conveyed by the first conveying device 110 to the compressed air P Pressure.

3, the first air blowing apparatus 150 includes an air blowing unit 151, a height adjusting apparatus 152, and a tilt adjusting apparatus 153.

As shown in FIGS. 1 and 2, six air blow units 151 are arranged in one direction (the direction in which the compressed air P is discharged) S, respectively.

The air blow unit 151 is provided with compressed air from the compressed air inlet 151a. The compressed air inlet 151a is connected to a pneumatic device (not shown) or a pneumatic line (not shown) Respectively. Accordingly, the air blow unit 151 receives the compressed air from the compressed air inlet 151a and discharges the compressed air P to the discharge unit 151b. The compressed air inlet 151a is provided with a control valve 151c which controls the supply of compressed air to the air blow unit 151 under the direction of the control unit 170. [

On the other hand, the height adjusting device 152 is installed in each air blowing unit 151 to adjust the height of the air blowing unit 151 according to an instruction from the control unit 170. For this purpose, And a rod 152b extending from the cylinder 152a.

One end of the rod 152b is connected to the air blow unit 151. When the rod 152a is extended, the air blow unit 151 is lowered. When the rod 152a is contracted, .

The height adjusting device 152 according to the present embodiment includes the cylinder 152a and the rod 152b, but the present invention is not limited thereto. That is, the height adjusting device according to the present invention is not particularly limited as long as the height of the air blow unit 151 can be adjusted. For example, the height adjusting device is not made up of a fluid cylinder and a rod but may be constituted by a general power transmitting device such as a power generating device such as a shaft rotating motor, a linear motor, and a speed reducer.

The tilt adjusting device 153 adjusts the tilt of the air blowing unit 151 in response to an instruction from the controller 170. The tilt adjusting device 153 adjusts the tilt of the air blowing unit 151 by controlling the tilt of the shaft of the driving motor 153a and the driving motor 153a And an associated reduction gear 153b.

One end of the rotary shaft of the speed reducer 153b is connected to the rotary shaft 152a_1 of the cylinder 152a and the inclination of the cylinder 152a is adjusted as the drive motor 153a is operated. The inclination of the air blow unit 151 connected to the rod 152a of the cylinder 152a is also adjusted so that the direction of the compressed air P injected from the air blow unit 151 .

The tilt adjusting device 153 according to the present embodiment includes the driving motor 153a and the speed reducer 153b, but the present invention is not limited thereto. That is, the tilt adjusting device according to the present invention is not particularly limited as long as it can adjust the inclination of the air blow unit 151. For example, the tilt adjusting device may include a fluid cylinder, a linear motor, and the like.

In addition, the tilt adjusting device 153 according to the present embodiment has a structure that is connected to the cylinder 152a to adjust the inclination of the cylinder 152a, but the present invention is not limited thereto. That is, the tilt adjusting device according to the present invention may be configured to adjust the inclination of the air blow unit 151, and there is no particular limitation on its specific structure. For example, the tilt adjusting device 153 may be directly connected to the air blow unit 151 to directly adjust the inclination of the air blow unit 151. [

The direction of the inclination of the air blow unit 151 controlled by the tilt adjusting device 153 according to the present embodiment is configured to be rotated in a direction rotating about a straight line parallel to the one direction S described above, But is not limited thereto. That is, the tilt direction of the air blow unit controlled by the tilt adjusting device according to the present invention can be configured such that the tilt is adjusted in various directions. For example, the air blow unit may be configured in a direction rotating about a straight line or a sloping straight line perpendicular to the one direction S described above, and the inclination may be adjusted in two directions or three or more directions You may.

The second air blowing device 160 is located above the second conveying device 120 and moves the upper surface of the light transmitting member B conveyed by the second conveying device 120 to the compressed air P Pressure.

The second air blowing device 160 includes an air blowing unit 161, a height adjusting device 162 and a tilt adjusting device 163. As shown in FIG. 3, the first air blowing device 150, respectively.

The description of the air blowing unit 161, the height adjusting device 162 and the tilt adjusting device 163 of the second air blowing device 160 is the same as that of the first air blowing device 150 The description of the unit 151, the height adjusting device 152, and the tilt adjusting device 153 may be applied as it is, so that detailed description is omitted here.

The number and arrangement of the air blow units 161 of the second air blow apparatus 160 shown in FIG. 1 are the same as the number and arrangement of the air blow units 151 of the first air blow apparatus 150, However, the present invention is not limited to this. That is, the number and arrangement of the air blow units 161 may be different from the number and arrangement of the air blow units 151. For example, the number of the air blow units 161 may be twelve, and the number of the rows arranged may be two rows instead of one row.

Although the first air blow apparatus 150 and the second air blow apparatus 160 according to the present embodiment include the height adjusting devices 152 and 162 and the tilt adjusting devices 153 and 163, But is not limited thereto. That is, according to the present invention, the first air blow device 150 and the second air blow device 160 may not include the height adjusting devices 152 and 162, and the tilt adjusting devices 153 and 163 ). ≪ / RTI >

As described above, in the case of the first air blow apparatus 150 and the second air blow apparatus 160 according to the present embodiment, as shown in FIG. 1, the air blow units 151 and 161 The arrangements are arranged in one row by six, but the present invention is not limited thereto. That is, as in the following case, various modifications may exist.

FIG. 4 is a schematic plan view showing a light transmitting member inspection apparatus 200 according to a modification of the embodiment of the present invention, FIG. 5 is a schematic view of a light transmitting member inspection apparatus 300 according to another modification of the embodiment of the present invention, Fig.

The first transfer device 210 and the second transfer device 220 of the light transmitting member inspection apparatus 200 shown in FIG. 4 are connected to the first transfer device (not shown) of the light transmission member testing device 100 according to the present embodiment 110 and the second transfer device 120 are the same. The first conveying device 310 and the second conveying device 320 of the light transmitting member inspection apparatus 300 shown in FIG. 5 are connected to the first conveying device 310 of the light transmission member testing device 100 according to the present embodiment, Is the same as the device 110 and the second transfer device 120

4, the arrangement of the air blow units 251 and 261 can be arranged in the jig asingle direction S, and the air blow units 351, (361) may be arranged in two rows along one direction (S).

On the other hand, the controller 170 controls the entire light-transmitting member testing apparatus 100, and may be implemented in the form of a series of programs, an integrated circuit chip, a circuit board, and the like.

Specifically, the control unit 170 controls the first and second conveying devices 110 and 120 to convey the light transmitting member B, and during the conveying process, the first air blowing device 150, the second The air blowing device 160 is operated to prevent the light transmitting member B from being shaken to the left or right during the conveying process. The control unit 170 captures the light transmitting member B to the image capturing apparatus 130 through the inspection area E and analyzes the captured image with the image processing program to determine whether the light transmitting member B is defective Lt; / RTI >

Hereinafter, the inspection process of the light transmitting member B of the light transmitting member inspection apparatus 100 will be described with reference to Figs. 1 to 3. Fig.

First, the user sets the air blow unit 151 of the first air blow apparatus 150 and the air blow unit (not shown) of the second air blow apparatus 160 so that the weight, thickness, 161) is adjusted manually or automatically. Here, as an example of automatic adjustment, the attitude data of the air blow units 151 (161) suitable for the type of the light transmission member (B) to be inspected is stored in advance in the control unit 170, When the type of the light transmitting member B is inputted to the controller 170, the controller 170 automatically adjusts the posture of the air blow units 151 and 161 according to the stored posture data.

The air blowing unit 151 of the first air blowing apparatus 150 and the air blowing unit 161 of the second air blowing apparatus 160 are controlled to adjust the postures such as the height and the inclination of the air blowing unit 161 Step, but the present invention is not limited thereto. That is, the process of adjusting the posture of the air blow unit 151 and the air blow unit 161 may be omitted in the inspection process according to the present invention.

When the light transmitting member B is conveyed and placed on the surface of the ring gear 111b of the first conveying apparatus 110, the controller 170 drives the driving motor 112 of the first conveying apparatus 110 Thereby moving the light transmitting member B in one direction S by moving the ring belt 111b. At this time, the controller 170 also drives the driving motor 122 of the second conveying device 120 to move the ring belt 121b.

According to the present embodiment, the controller 170 drives the first transfer device 110 and the second transfer device 120 together, but the present invention is not limited thereto. That is, according to the present invention, the control unit 170 drives the first conveying apparatus 110 first, and controls the first light transmitting member detecting sensor 115 and the second light transmitting member detecting sensor 116 according to the detection result of the first light transmitting member detecting sensor 115 and the second light transmitting member detecting sensor 116 2 conveying device 120. The control unit 120 controls the conveying unit 120 so that the conveying unit 120 is driven by the conveying unit.

On the other hand, when the light transmitting member B being conveyed passes over the first light transmission member detecting sensor 115, the first light transmitting member detecting sensor 115 recognizes it and generates a first sensing signal, And sends a detection signal to the control unit 170.

When the control unit 170 receives the first sensing signal, the controller 170 operates the control valve 151c of the first air blowing unit 150 to open the compressed air to the compressed air inlet 151a And discharged to the discharge portion 151b of the air blow unit 151. [ The discharged compressed air P presses the upper surface of the light transmitting member B located at the lower side and the pressed light transmitting member B is prevented from moving leftward and rightward in the conveying direction . Then, the light transmitting member B does not move like a snake but is directly fed straight.

When the light transmitting member B continues to be conveyed and the light transmitting member B passes over the second light transmitting member detecting sensor 116, the second light transmitting member detecting sensor 116 recognizes it, And transmits the second sensing signal to the control unit 170. [ When the controller 170 receives the second sensing signal, the controller 170 generates illumination light using the illumination device 140 and transmits the illumination light to the light transmitting member B ). The photographed image of the light transmitting member B is transmitted to the control unit 170 and analyzed by the image processing program to inspect the light transmitting member B for defects or the like.

On the other hand, when the light transmitting member B is continuously conveyed in the one direction S and the light transmitting member B passes over the third light transmitting member detecting sensor 125, the third light transmitting member detecting sensor 125 generates a third sensing signal and transmits the third sensing signal to the controller 170. [

The control unit 170 operates the control valve 161c of the air blowing unit 161 of the second air blowing device 160 to supply the compressed air to the compressed air inlet portion And then discharged to the discharge portion 161b of the air blow unit 161 through the discharge port 161a. The discharged compressed air P presses the upper surface of the light transmitting member B located at the lower side and the pressed light transmitting member B is prevented from moving leftward and rightward in the conveying direction . At this time, if the length of the light transmitting member B is sufficiently large, the front portion (a portion ahead of the one direction S) of the light transmitting member B is moved to the second air blowing apparatus 160 And the light transmitting member B is pressed by the first air blowing device 150 so that the light transmitting member B is moved in the rightward and leftward direction during its feeding The shake is sufficiently suppressed, so that it is possible to stably photograph the image capturing apparatus 130. [

Then the light transmitting member B is continuously conveyed in one direction S so that the rear portion of the light transmitting member B is moved above the second light transmitting member detecting sensor 116, When the second light transmission member detection sensor 115 and the second light transmission member detection sensor 116 fail to recognize the light transmission member B, the control unit 170 controls the control valve 151c of the first air blow device 150 to be in the closed state And the discharge of the compressed air P to the discharge portion 151b of the air blow unit 151 is stopped.

Then, the light transmitting member B is continuously conveyed in one direction (S) so that the rear portion of the light transmitting member B is moved above the third light transmitting member detecting sensor 125, The control unit 170 operates the control valve 161c of the second air blowing device 160 to close the air blowing unit 161 so that the air blowing out of the air blowing unit 161 And the discharge of the compressed air (P) is stopped by the discharge port (161b).

Then, the light transmitting member B is continuously conveyed in the one direction (S) by the second conveying device 120 to end the inspection process.

The inspection process described above is repeatedly performed when the next light transmitting member to be inspected is fed and placed on the surface of the ring gear 111b of the first conveying device 110. [

In the inspection process of the light transmission member B of the light transmission member inspection apparatus 100 according to the present embodiment, the first light transmission member detection sensor 115, the second light transmission member detection sensor 116, The first air blowing device 150 and the second air blowing device 160 perform the discharge of compressed air or stop the discharge of the compressed air according to the detection result of the transmission member detection sensor 125. However, But is not limited thereto. That is, according to the present invention, compressed air discharge of the first air blow device 150 and the second air blow device 160 may be continuously performed while the light transmitting member inspection apparatus 100 is operated. In this case, it is possible to reduce the number of the light transmission member detecting sensors, thereby reducing the manufacturing cost and the occurrence rate of the failure as a whole.

The process of inspecting the light transmitting member B in the light transmitting member inspection apparatus 100 according to the embodiment of the present invention is the same as the process of inspecting the light transmitting member B in the process of transferring and photographing the light transmitting member B, It is possible to prevent the light transmitting member B from being shaken by using the first air blowing device 150 and the second air blowing device 160 so that a precise inspection image can be obtained at the time of image pick- .

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, You will understand the point. Accordingly, the true scope of protection of the present invention should be determined only by the appended claims.

INDUSTRIAL APPLICABILITY The present invention can be applied to an industry related to an apparatus for inspecting a light transmitting member.

100, 200, 300: optical transmission member inspection device
110, 210, 310: first conveying device 120, 220, 320: second conveying device
130: Image pickup device 140: Lighting device
150: first air blow device 160: second air blow device 170:

Claims (6)

A first conveying device for conveying the light transmitting member in one direction;
A second conveying device arranged to have an inspection area between the first conveying device and the end of the first conveying device and to receive the light transmitting member transferred from the first conveying device and continue to convey the same in one direction;
An imaging device for imaging the light transmitting member positioned in the inspection area;
An illuminating device for illuminating the light transmitting member with illumination light;
A first air blowing device located above the first conveying device and pressurizing the upper surface of the light transmitting member conveyed by the first conveying device with compressed air; And
And a second air blowing device located above the second conveying device and pressurizing the upper surface of the light transmitting member conveyed by the second conveying device with compressed air. The method according to claim 1,
Wherein at least one of the first conveying device and the second conveying device includes two ring belt conveyor devices arranged in parallel to each other. The method according to claim 1,
At least one of the first air blowing device and the second air blowing device includes at least one air blowing unit and a height adjusting device for adjusting a height of the air blowing unit. The method according to claim 1,
Wherein at least one of the first air blowing device and the second air blowing device includes at least one air blowing unit and a tilt adjusting device for adjusting a tilt of the air blowing unit. The method according to claim 1,
At least one of the first air blowing apparatus and the second air blowing apparatus includes a plurality of air blowing units,
Wherein the plurality of air blow units are arranged in at least one row along the one direction. The method according to claim 1,
At least one of the first air blowing apparatus and the second air blowing apparatus includes a plurality of air blowing units,
Wherein the plurality of air blow units are arranged in a jig along the one direction.
KR1020150027261A 2015-02-26 2015-02-26 Apparatus for inspecting light transmission object KR20160104361A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109799210A (en) * 2019-01-24 2019-05-24 江苏摩臣智联科技股份有限公司 The light transmittance detection device of handset touch panel
CN111208151A (en) * 2020-01-18 2020-05-29 姚云峰 Glass substrate's internal defect on-line measuring device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109799210A (en) * 2019-01-24 2019-05-24 江苏摩臣智联科技股份有限公司 The light transmittance detection device of handset touch panel
CN111208151A (en) * 2020-01-18 2020-05-29 姚云峰 Glass substrate's internal defect on-line measuring device

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